Flow control electric diaphragm pump

The utility model discloses a flow control electric diaphragm pump which comprises a pump body and a gear motor, fixing blocks are arranged on the two radial sides of the end, away from a motor body, of a rotating shaft of the gear motor, a lead screw is further arranged on the gear motor and rotationally arranged between the two fixing blocks, and a fixing rod is in threaded connection with the lead screw; the length direction of the fixing rod is parallel to the length direction of the rotating shaft, the fixing rod is eccentrically arranged on the rotating shaft of the gear motor, the end, close to the rotating shaft, of the fixing rod abuts against the end face of the rotating shaft, a rotating block is further rotationally arranged on the fixing rod, and the rotating block is arranged in the pump body in an inserted mode. Therefore, the position of the rotating block is changed, namely the sliding stroke of the middle body in the pump body is changed, finally the purpose of changing the suction flow of t